LG D5988WM, Service Manual

Page 1: ...ww lg ca For Canada ELECTRIC GAS DRYER SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES CORRECTLY BEFORE OFFERING SERVICE MODEL DLE5977W DLG5988W DLE5977B DLG5988B DLE3777W DLG3788W DLE5977WM DLG5988WM DLE5977SM DLG5988SM ...

Page 2: ...ms are present everywhere ESD may damage or weaken the electronic control assembly The new control assembly may appear to work well after repair is finished but failure may occur at a later date due to ESD stress Use an anti static wrist strap Connect wrist strap to green ground connection point or unpainted metal in the appliance OR Touch your finger repeatedly to a green ground connection point ...

Page 3: ...OR TEST MEASURE WITH POWER OFF 22 9 3 TEST 3 MOTOR TEST 23 9 4 TEST 4 MOISTURE SENSOR 24 9 5 TEST 5 DOOR SWITCH TEST 25 9 6 TEST 6 HEATER SWITCH TEST ELECTRIC TYPE 26 9 7 TEST 7 GAS VALVE TEST GAS TYPE 27 10 CHANGE GAS SETTING NATURAL GAS PROPANE GAS 28 11 DISASSEMBLY INSTRUCTIONS 30 12 EXPLODED VIEW 37 12 1 CONTROL PANEL PLATE ASSEMBLY 37 12 2 CABINET DOOR ASSEMBLY 38 12 3 1 DRUM MOTOR ASSEMBLY E...

Page 4: ...information Size 68 6X98 3X76 1 cm Dryer capacity IEC 7 3cu ft Weight 126 Ibs Specifications are subject to change by manufacturer ACESSORIES Dryer rack 1 each Stacking kit 1 each Purchased Separately Pedestal 1 each Purchased Separately See page 6 for how to use See page 7 for how to use See page 8 for how to use ...

Page 5: ...es DLG3788W DLG5988W DLG5988B ITEM Child Lock Reversible Door Interior Light Product WxHxD Packing WxHxD Sound levels Dryer Rack Drum No of Dry Levels No of Dry Options No of Programs DRUM CAPACITY CONTROL TYPE No of Temperature Controls Weight lbs Net Gross AC 120V GASTYPE AC 240V ELECTRICTYPE Electrode sensor Termistor AC 120V AC 120V REMARK Avaiable Avaiable Avaiable Avaiable Avaiable Avaiable ...

Page 6: ...5977B DLG5988B DLE5977WM DLG5988WM DLE5977SM DLG5988SM DLE3777W DLG3788W Open the door Hold the dryer rack with both hands Put the dryer rack into the drum Make sure that dryer is evenly placed right onto the drum inside and door rim 1 2 3 Dryer Rack Installation Instructions ...

Page 7: ... in the picture Avoid finger injuries be careful not to pinch fingers between the washer and dryer Slide washer slowly backwards to the stopper of kit Insert the front stacking kit Push the front stacking kit back to the stoppers of side stacking kit Screw both sides of the front kit Do not use stacking kit with a gas dryer in potentially unstable conditions like a mobile home S t a c k i n gk i t...

Page 8: ...pliance 6 Install the eight 8 screws supplied to attach the brackets to the pedestal 7 Move the dryer to the desired place NOTE The appliance and pedestal assembly must be placed on a solid and level floor for proper operation Adjust the legs of the appliance and pedestal by turning with a wrench Then adjust the lock unt toward the pedestal while holding the pedestal leg using a wrench 1 Remove pe...

Page 9: ...ghtward and pinch the hook together and screw tightly Use the instructions at this section if your home has a 4 wire receptacle NEMA type 14 30R and you will be using a UL listed 120 240 volt minimum 30 amp dryer power supply cord If this type is available at your home you will be connecting to a fused disconnect or circuit breaker box 1 Connect neutral wire white of power cord to center terminal ...

Page 10: ...e terminal block hooked end facing rightward and pinch the hook together and screw tightly cm 31 2 8 6 cm 1 2 5 cm 5 12 7 cm 1 2 5 cm 3V2 8 9 cm 3 wire connection Direct wire 1 Connect neutral wire white of power cord to center terminal block screw 2 Connect red and black wire to the left and right terminal block screws 3 Connect ground wire green of power cord to external ground screw and move ne...

Page 11: ...ound wire from external ground connector to proper ground e d b c lf your local codes or ordinances permit the connection of a frame grounding conductor to the neutral wire use these instructions If your local codes or ordinances do not allow the connection of a frame grounding conductor to the neutral wire use the instructions under Section 3 Optional 3 wire connection Option 2 3 Wire Connection ...

Page 12: ...tor 4 Tighten all connections securely Turn on gas and check all pipe connections internal external for gas leaks with a non corrosive leak detection fluid 5 For L P Liquefied Petroleum gas connection refer to section on Gas Requirements For further assistance refer to section on Gas Requirements 1 New Stainless Steel Flexible Connector Use only if allowed by local codes Use Design A G A Certified...

Page 13: ...ation Saturation 55min 41min 36min 32min 34min 25min 20min 30min 5min 5min 5min 5min 5min 5min 5min 5min N A 68 4 C 66 4 C 60 4 C 52 3 C 52 3 C 45 3 C 70 5 C 66 5 C No heater 47 5 C 47 5 C 47 5 C 47 5 C 38 5 C 38 5 C 47 5 C 47 5 C N A Saturation Load Sensor Dry Manual Dry Default Drying Electro sensor Temp Control Default time Temp Control Cooling Wrinkle care Conditions of operation and terminati...

Page 14: ... Heater case Hi limit Electric type 3 Outlet Thermostat Auto reset Check Top Marking N85 Measure resistance of terminal to terminal Open at 185 9 F 85 5 C Close at 149 9 F 65 5 C Same shape as Thermal cut off Resistance value Resistance value 5Ω Blow housing Safety Electric type 4 Lamp holder Measure resistance of terminal to terminal Resistance value 80Ω 100Ω 6 Idler switch Measure resistance of ...

Page 15: ... 58 F 10 40 C 58 F 104F 10 40 C Resistance value 10Ω Heater case Hi limit Electric type 9 Motor See Page 13 10 Gas valve valve 1 valve 2 Measure resistance of the following terminal Valve 1 terminal Valve 2 terminal Resistance value 1 5kg Resistance value 1 5 2 5kg Gas type 11 Igniter Measure resistance of terminal to terminal Resistance value 100 800Ω Gas type 12 Frame Detect Measure resistance o...

Page 16: ... terminal Open at 203 7 F 95 5 C Close at 158 9 F 70 5 C Resistance value Continuity 1Ω Gas type Gas funnel 13 Outlet Thermostat Manual reset Check Top Marking N100 Measure resistance of terminal to terminal Open at 212 12 F 100 7 C Manual reset If thermal fuse is open must be replaced Resistance value Continuity 1Ω Gas type Gas funnel ...

Page 17: ... On Off by Centrifugal Switch STOP MODE When Motor does not operate RUN MODE Motor operates When checking Component be sure to turn Power off then do voltage discharge sufficiently NOTE Centrifugal switch Centrifugal switch Pull Drive forward ...

Page 18: ... DISPLAY AS DIAGNOSTIC TEST MODEL DLE5977WM SM DLE5977W B DLG5988WM SM DLG5988W B DLE3777W DLG3788W OP 1 X X X X OP 2 X X X X OP 3 X O X O OP 4 O O X X OP 5 X X X X OP 6 X X X X 6871EC1115A 6871EC1115B 6871EC1115C 6871EC1115D 18 FO 19 FO 18 F1 19 F1 OPTION PART LED DISPLAY P No ...

Page 19: ...OWN BROWN GRAY BLUE WHITE BLUE BLUE BLUE ORANGE RED RED RED PINK PINK YELLOW CENTRIFUGAL SWITCH 1 2 2 3 1 1 3 2 3 1 2 1 3 2 4 1 2 2 1 2 1 3 2 3 7 9 2 3 1 3 2 1 3 2 1 3 5 6 1 2 1 2 2 1 2 1 BLUE 8 7 6 5 4 3 2 1 ELECTRONIC CONTROL HI LIMIT THERMOSTAT RD3 WH3 WHITE RED BLACK PLC MODEM N WHITE L2 WHITE BLOWER THERMOSTAT RED YELLOW HEATER BLUE RED BELT SWITCH L1 BLACK BROWN WHITE INNER COIL OUTER COIL B...

Page 20: ... pressing start 1 time step 2 by pressing start 2 times step 3 by pressing start 3 times and step 4 by pressing start 4 times in sequence Press Start 2 times and then open the door Proceed again from the step 1 all the way to the step 4 Press Start 3 times and then open the door Proceed with the step 1 and skip the step 2 and press step 3 twice and finish with step 4 by making sure the all the ele...

Page 21: ...et is the voltage 110V 125V AC YES NO Check the fuse or circuit breaker Check if the voltage measured between Connector RD3 Black linked to the Controller and WH3 White is 110V 125V YES NO Check if Power Cord is properly connected Reconnect the controller Replace controIler Check if the Controller wire is disconnected Check if Terminal Block and Power Cord are connected Check Plug Does Power Cord ...

Page 22: ... 1 when measuring 6pin connector Pin Blue wire and Pin Red wire connected to Controller NO YES Check if Control and 6Pin connector is properly connected Replace Controller Check Harness linking connector Take 6pin Connector from the Controller Table 1 Resistance for Thermistor Temperature Check if resistance is in the range of Table 1 when measuring resistance between terminals after separating Ha...

Page 23: ... from Motor Pulley Is resistance below 3Ω between Connector WH3 White wire and BL2 Yellow wire Measure while door is closed YES NO Check if Door flame presses door switch knob Check Door Switch Check Harness connection Is resistance below 3Ω between Connector BL2 Yellow wire and BL2 Brown wire NO YES Replace Control Relay check Check Controller connector Is resistance below 1Ω between terminals of...

Page 24: ...5V 2 0V 4 0V Over 4 0V Weight after removing from Washing Machine Damp Dry Completely dried clothes Display Value Voltage DC between 6Pin terminal Remark Short with metal to 6pin connector s Pin BLUE wire and Pin ORANGE wire to Controller When measuring resistance in Electric load is resistance below 1Ω YES NO When contacting cloth to Electro load 1 Is the measurement within the range of Table 2 d...

Page 25: ...d RD3 Black wire Connector WH3 RD3 after taking WH3 RD3 out from Controller NO YES Door switch Check Refer to Component testing Measure while Door is open Check if resistance is 300 60Ω between WH3 White wire and RD3 Black wire Connector WH3 RD3 after taking WH3 RD3 out from Controller YES NO Check Lamp When opening Lamp replace then measure again Door switch Check Refer to Component testing Measu...

Page 26: ...heck Motor Check if the value of measured resistance is below 1Ω between terminal and at RUN condition YES NO Check Motor and replace it 1 Is resistance between Heater terminal and below 18 22Ω 2 Is resistance between Heater terminal and below 18 22Ω 3 Is resistance between Heater terminal and below 9 11Ω YES NO Replace Heater Check if the value of measured resistance is below 1Ω between terminal ...

Page 27: ... When measuring terminal resistance on Valve 1 Valve 2 Value is more than1 5 2 5kΩ Measure after Off NO YES Change Valve Check thermostat Hi limit Safety Igniter operates after 1 min Igniter becomes reddish YES NO Check Igniter Frame detect When measuring Valve 2 voltage Value is more than AC 90V 10 sec after Igniter off NO YES Check Gas connection or Gas supply When measuring Valve 1 voltage More...

Page 28: ... to authorized servicers only CHANGE GAS SETTING NATURAL GAS PROPANE GAS 10 Warning STEP 1 VALVE SETTING Full open Change screw STEP 2 ORIFICE CHANGE Orifice Gas type Natural Gas Propane Gas Marking NCU PCU Shape Orifice P No 4948EL4001B 4948EL4002B Close Change screw Remove 2 screws Disassemble the pipe assembly Replace Natural Gas orifice with Propane Gas orifice Kit contents Orifice Dia 1 613mm...

Page 29: ...CLOSE VALVE 1 IGNITER VALVE 2 FRAME DETECT OPEN GAS VALVE STRUCTURE GAS VALVE FLOW START KEY PUSH DRYING VALVE 1 ON VALVE 2 ON IGNITE ON FRAME DETECT OPEN IGNITE OFF IGNITE TEMPERATURE ABOUT 370 F GAS IGNITION FRAME DETECT CLOSE VALVE 2 OFF NO NO YES YES ...

Page 30: ...30 Disassemble and repair the unit only after pulling out power plug from the outlet DISASSEMBLY INSTRUCTIONS 11 1 Remove 3 screws on the upper plate 2 Push the top plate back ward 3 Lift the top plate ...

Page 31: ... panel frame 2 Disconnect the connectors 3 Pull the control panel assembly upward and then forward 4 Remove 9 screws on the PWB PCB assembly display 5 Remove 4 screws on the PWB PCB assembly main 6 Disassemble the control panel assembly ...

Page 32: ... Disassemble the top plate 2 Disassemble the control panel assembly 3 Disassemble the door assembly 4 Remove 2 screws 5 Remove 4 screws from the top of cabinet cover 6 Disconnect the harness of door switch ...

Page 33: ...assemble the top plate 2 Remove the Cabinet Cover and Tub drum front 3 Loosen belt from motor and idler pulleys 4 Carefully remove Drum out 1 2 1 1 Disassemble the door 2 Remove a screw by holding the drum lamp shield in place 3 Slide the shield up and remove 4 Remove the bulb and replace with a 15 watt 120 volt candelabra base bulb 5 Replace the lamp shield and screw ...

Page 34: ...e duct to the base Duct is a SVC part 2 1 Detach and remove a knockout at the botton left or right side as desired Right Side Vent not available on Gas dryer the order of work 3 1 Pre assemble 4 elbow with 4 duct Wrap duct tape around joint 3 2 Insert elbow duct assembly first through the side opening and connect the elbow to the internal duct ...

Page 35: ...t Cover and Tub Drum Front 3 Remove the Drum assembly 4 Remove 2 screws and cover Air guide 5 Remove the bolt and washer 6 Remove the fan 7 Disconnect the motor clamp and motor 1 Disassemble the top plate 2 Remove the Cabinet Cover and Tub Drum Front 3 Remove the Drum assembly 4 Remove 7 screws 5 Remove the Tub Drum Rear towards the front ...

Page 36: ...filter and 2 screws 4 Remove the air duct 1 Disassemble the top plate 2 Remove the Cover Cabinet and Tub Drum Front 3 Remove the Drum assembly and Tub Drum Rear 4 Disconnect Air duct from the Tub Drum Front 5 Remove the roller from the Tub Drum Front and Tub Drum Rear ...

Page 37: ...37 EXPLODED VIEW 12 12 1 Control Panel Plate Assembly A130 A110 A120 A140 A210 ...

Page 38: ...38 12 2 Cabinet Door Assembly A320 A600 A550 A310 A700 A390 A800 A570 A330 A500 A510 A460 A410 A450 A430 A420 A400 A300 A305 A530 A560 A525 A540 A520 ...

Page 39: ...m Motor Assembly Electric Type K640 K120 K140 K400 F200 K310 K610 K330 K340 K130 K100 K221 K222 K210 K350 K240 F120 F130 F110 F140 K510 K540 K650 K651 K600 K520 K550 K560 K620 K530 K320 K251 K360 K251 K230 K250 K250 ...

Page 40: ... M140 M240 M150 M141 M220 M230 M110 M181 M250 M190 K640 K120 K140 K400 F200 K310 K610 K330 K340 K130 K100 K221 K222 K210 K350 K240 K510 K540 K650 K651 K600 K520 K550 K560 K620 K530 K320 K251 K360 K251 K230 K250 K250 M171 Propane Gas orifice M170 Natural Gas orifice ...

Page 41: ...Apr 2004 PRINTED IN KOREA P No 3828EL3005A ...